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path: root/src/lib/uart8250.c
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2012-02-17Remove whitespace.Patrick Georgi
Fix issues reported by new lint test. Change-Id: I077a829cb4a855cbb3b71b6eb5c66b2068be6def Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/646 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-02-07Don't loop infinitely long on serial comm failuresKyösti Mälkki
If serial uart (8250/16x50) takes abnormally long to respond, give up on logging to serial console and instead let the system boot. Also reference bit in LSR register with correct name. Change-Id: I3796efc3e8690425f04a130af4bc99541b64d335 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/611 Tested-by: build bot (Jenkins) Reviewed-by: Peter Stuge <peter@stuge.se>
2011-09-07Add support for the tracing infastructure in coreboot.Rudolf Marek
The compiler is forced to emmit special functions on every entry/exit of the function. Add a compile time option to support it. Function entries will be printed in the console. The CONFIG_TRACE has more documentation. Patch for userspace tools will follow. Change-Id: I2cbeb3f104892b034c8756f86ed05bf71187c3f3 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-07-12Do full flush on uart8250 only at end of printk.Kevin O'Connor
The previous code does a full flush of the uart after every character. Unfortunately, this can cause transmission delays on some serial ports. This patch changes the code so that it does a flush at the end of every printk instead of at the end of every character. This reduces the time it takes to transmit serial messages (up to 9% on my Asrock e350m1 board). It also makes the transmission time more consistent which is important when performing timing tests via serial transmissions. Change-Id: I6b28488b905da68c6d68d7c517cc743cde567d70 Signed-off-by: Kevin O'Connor <kevin@koconnor.net> Reviewed-on: http://review.coreboot.org/90 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins) Reviewed-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-by: Sven Schnelle <svens@stackframe.org>
2011-05-10Change read_option() to a macro that wraps some API uglynessPatrick Georgi
Simplify read_option(CMOS_VSTART_foo, CMOS_VLEN_foo, somedefault) to read_option(foo, somedefault) Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6565 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-04-22fix typo ttys0_index -> b_indexStefan Reinauer
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6540 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-04-22Get rid of all but one (I/O mapped) UART init functions.Stefan Reinauer
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6539 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-04-22The UART divider should be calculated based on the base frequencyStefan Reinauer
and baudrate, not hardcoded in addition to that. Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6538 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-04-20drop excessive newline in uart8250.cStefan Reinauer
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6533 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-04-20drop dead uart init code.Stefan Reinauer
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6523 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-04-14drop half an uart8250 implementation from smiutil and use the common code Stefan Reinauer
for that instead. This also allows using non-uart8250 consoles for smi debugging. Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6501 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-01-05uart_init is only used in romstage.Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coreboot.org> Acked-by: Stefan Reinauer <stepan@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6245 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-12-17drop one more version of doing serial uart output differently.Stefan Reinauer
coreboot made it kind of complicated to print a character on serial. Not quite as complicated as UEFI, but too much for a good design. Fix it. Signed-off-by: Stefan Reinauer <stepan@coreboot.org> Acked-by: Stefan Reinauer <stepan@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6191 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-27Since some people disapprove of white space cleanups mixed in regular commitsStefan Reinauer
while others dislike them being extra commits, let's clean them up once and for all for the existing code. If it's ugly, let it only be ugly once :-) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-06-30This patch unifies the use of config options in v2 to all start with CONFIG_Stefan Reinauer
It's basically done with the following script and some manual fixup: VARS=`grep ^define src/config/Options.lb | cut -f2 -d\ | grep -v ^CONFIG | grep -v ^COREBOOT |grep -v ^CC` for VAR in $VARS; do find . -name .svn -prune -o -type f -exec perl -pi -e "s/(^|[^0-9a-zA-Z_]+)$VAR($|[^0-9a-zA-Z_]+)/\1CONFIG_$VAR\2/g" {} \; done Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4381 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2006-10-07Add serial stream payload support from Ed Swierk <eswierk@arastra.com>Stefan Reinauer
X-Signed-Off-By: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2447 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-11-11mpspec.h: Tweak the write_smp_table macro so that it is safe if passed a ↵Eric Biederman
complex expression. crt0.S.lb: Modified so that it is safe to include console.inc console.c: Added print_debug_ and frieds which are non inline variants of the normal console functions div64.h: Only include limits.h if ULONG_MAX is not defined and define ULONG_MAX on ppc socket_754/Config.lb Conditionally set config chip.h socket_940.c We don't need and #if CONFIG_CHIP_NAME we won't be linked in if there are no references. slot_2/chip.h: The operations struct need to be spelled cpu_intelt_slot_2_ops slot_2/slot2.c: The same spelling fix socket_mPGA603/chip.h: again socket_mPGA603/socket_mPGA603_400Mhz.c: and again socket_mPGA604_533Mhz/Config.lb: Conditionally defing CONFIG_CHIP_NAME socket_mPGA604_800Mhz/chip.h: Another spelling fix socket_mPGA604_800Mhz.c and again via/model_centaur/model_centaur_init.c: It's not an intel CPU so don't worry about Intel microcode uptdates earlymtrr.c: Remove work around for older versions of romcc pci_ids.h: More ids. malloc.c: We don't need string.h any longer uart8250.c: Be consistent when delcaring functions static inline arima/hdama/mptable.c: Cleanup to be a little more consistent amdk8/coherent_ht.c: - Talk about nodes not cpus (In preparation for dual cores) - Remove clear_temp_row (as it is no longer needed) - Demoted the failure messages to spew. - Modified to gracefully handle failure (It should work now if cpus are removed) - Handle the non-SMP case in verify_mp_capabilities - Add clear_dead_routes which replaces clear_temp_row and does more - Reorganize setup_coherent_ht_domain to cleanly handle failure. - incoherent_ht.c: Clean up the indenation a little. i8259.c: remove blank lines at the start of the file. keyboard.c: Make pc_keyboard_init static ramtest.c: Add a print out limiter, and cleanup the printout a little. amd8111/Config.lb: Mention amd8111_smbus.c amd8111_usb.c: Call the structure usb_ops not smbus_ops. NSC/pc97307/chip.h: Fix spelling issue pc97307/superio.c: Use &ops no &pnp_ops. w83627hf/suerio.c: ditto w83627thf/suerio.c: ditto buildrom.c: Use braces around the body of a for loop. It's more maintainable. git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1778 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-03-13added rx supportGreg Watson
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1410 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-03-11- Moved hlt() to it's own header.Eric Biederman
- Reworked pnp superio device support. Now complete superio support is less than 100 lines. - Added support for hard coding resource assignments in Config.lb - Minor bug fixes to romcc - Initial support for catching the x86 processor BIST error codes. I've only seen this trigger once in production during a very suspcious reset but... - added raminit_test to test the code paths in raminit.c for the Opteron - Removed the IORESOURCE_SET bit and added IORESOURCE_ASSIGNED and IORESOURCE_STORED so we can tell what we have really done. - Added generic AGP/IOMMU setting code to x86 - Added an implementation of memmove and removed reserved identifiers from memcpy - Added minimal support for booting on pre b3 stepping K8 cores - Moved the checksum on amd8111 boards because our default location was on top of extended RTC registers - On the Hdama added support for enabling i2c hub so we can get at the temperature sensors. Not that i2c bus was implemented well enough to make that useful. - Redid the Opteron port so we should only need one reset and most of memory initialization is done in cpu_fixup. This is much, much faster. - Attempted to make the VGA IO region assigment work. The code seems to work now... - Redid the error handling in amdk8/raminit.c to distinguish between a bad value and a smbus error, and moved memory clearing out to cpufixup. - Removed CONFIG_KEYBOARD as it was useless. See pc87360/superio.c for how to setup a legacy keyboard properly. - Reworked the register values for standard hardware, moving the defintions from chip.h into the headers of the initialization routines. This is much saner and is actually implemented. - Made the hdama port an under clockers BIOS. I debuged so many interesting problems. - On amd8111_lpc added setup of architectural/legacy hardware - Enabled PCI error reporting as much as possible. - Enhanded build_opt_tbl to generate a header of the cmos option locations so that romcc compiled code can query the cmos options. - In romcc gracefully handle function names that degenerate into function pointers - Bumped the version to 1.1.6 as we are getting closer to 2.0 TODO finish optimizing the HT links of non dual boards TODO make all Opteron board work again TODO convert all superio devices to use the new helpers TODO convert the via/epia to freebios2 conventions TODO cpu fixup/setup by cpu type git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1390 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2003-07-12- Remove all of the annoying $Id stringsEric Biederman
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@956 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2003-04-22- Initial checkin of the freebios2 treeEric Biederman
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@784 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1